9. Troubleshooting guide
Problem
Probable cause
Corrective Action
Unit wonʼt start or starts but will not
run.
Incorrect starting procedures.
Follow instructions in the User
Manual.
Incorrect carburetor mixture
adjustment setting.
Have carburetor adjusted by an
Authorized Service Center.
Fouled spark plug.
Clean / gap or replace plug.
Fuel filter plugged.
Replace fuel filter.
Unit starts, but engine has low
power.
Incorrect lever position on choke.
Move to RUN position.
Dirty air filter.
Remove, clean and reinstall filter.
Incorrect carburetor mixture
adjustment setting.
Have carburetor adjusted by an
Authorized Service Center.
Engine hesitates.
Incorrect carburetor mixture
adjustment setting.
Have carburetor adjusted by an
Authorized Service Center.
No power under load.
Incorrectly gapped spark plug.
Clean / gap or replace plug.
Runs erratically.
Incorrect carburetor mixture
adjustment setting.
Have carburetor adjusted by an
Authorized Service Center.
Smokes excessively.
Incorrect fuel mixture.
Use properly mixed fuel (40:1
mixture).
Poor performance when operated
Blunt chain
Loose chain
Sharpen or replace the chain
Tension the chain
Engine dies
Empty petrol tank
Fuel filter in the wrong position in
the tank
Fill up the petrol tank
Completely fill the petrol tank or or
re-position the fuel filter in the
petrol tank
Insufficient chain lubrication
(the cutter rail and chain get hot)
Empty oil tank for the chain
Oil lubrication openings moved
Top up the oil tank for the chain
Clean the oil lubrication hole in the
cutter bar (Fig. 2/Item A)
Clean the groove in the cutter bar
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